Finding the Fourth Proportional to 99,578.67, 149,395.68 and 43,423.68
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Solution
The fourth proportional to 99,578.67, 149,395.68 and 43,423.68 is: 65,147.59
Step by Step Solution
- Step 1: Write the proportion equation
99,578.67 : 149,395.68 = 43,423.68 : x - Step 2: Convert to fraction form
99,578.67/149,395.68 = 43,423.68/x - Step 3: Cross multiply
99,578.67x = 149,395.68 × 43,423.68 - Step 4: Simplify right side
99,578.67x = 6,487,310,490.78 - Step 5: Solve for x
x = 6,487,310,490.78/99,578.67 - Step 6: Final answer
x = 65,147.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.